Types of Minerals

How many types of minerals are there on Earth?

• About 10,000

• About 2,000

• About 8,000

• About 4,000

Which is the largest class of minerals?

• Native elements

• Silicates

• Oxides

• Halides

Which of the following minerals has a metallic luster, a black streak, and could scratch Gold?

• Magnetite

• Graphite

• Galena

• Hematite

Which mineral could Fluorite scratch?

• Diamond

• Calcite

• Quartz

• Apatite

Click on each vocabulary word, then click in the correct box on the graphic organizer.

a

b

c

d

luster

hardness

cleavage

streak

Which of the following minerals can Apatite scratch? Select all that apply.

• Gypsum

• Fluorite

• Calcite

• Diamond

Which mineral could Quartz not scratch?

• Corundum

• Talc

• Feldspar

• Calcite

If you look at a mineral and decide if it is metallic or nonmetallic, shiny, dull, glassy, how it reflects light -you are looking at its __________.

• luster

• cleavage

• fracture

• streak

A ________ is a naturally occurring, inorganic, solid that can have crystal structure and definite chemical composition. 

• mineral

• rock

• crystal

• fluorite

The copper in a penny is a mineral. What is the luster for copper? Why?

• The luster for copper is non-metallic because it's not a metal

• The luster for copper is metallic because copper's a metal

• The luster for copper is opaque

• The luster for copper is non-metallic because it is metal.